CN108427876B - Fingerprint identification method and mobile terminal - Google Patents

Fingerprint identification method and mobile terminal Download PDF

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Publication number
CN108427876B
CN108427876B CN201810326657.5A CN201810326657A CN108427876B CN 108427876 B CN108427876 B CN 108427876B CN 201810326657 A CN201810326657 A CN 201810326657A CN 108427876 B CN108427876 B CN 108427876B
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CN
China
Prior art keywords
brightness value
mobile terminal
touch area
screen
fingerprint
Prior art date
Application number
CN201810326657.5A
Other languages
Chinese (zh)
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CN108427876A (en
Inventor
徐大清
Original Assignee
维沃移动通信有限公司
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Priority to CN201810326657.5A priority Critical patent/CN108427876B/en
Publication of CN108427876A publication Critical patent/CN108427876A/en
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Publication of CN108427876B publication Critical patent/CN108427876B/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of power-saving mode
    • G06F1/3206Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215Monitoring of peripheral devices
    • G06F1/3218Monitoring of peripheral devices of display devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/325Power saving in peripheral device
    • G06F1/3265Power saving in display device
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00006Acquiring or recognising fingerprints or palmprints
    • G06K9/00013Image acquisition
    • G06K9/0004Image acquisition by using electro-optical elements or layers, e.g. electroluminescent sensing

Abstract

The invention provides a fingerprint identification method and a mobile terminal, wherein the method comprises the following steps: if the touch operation on the screen of the mobile terminal is detected, identifying the touch operation in a touch area of the screen of the mobile terminal; if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value; utilize fingerprint identification module collection and discernment the regional fingerprint information of touch-control. The fingerprint identification method provided by the invention can reduce the power consumption of the mobile terminal and prolong the endurance time of the mobile terminal while ensuring higher fingerprint identification rate.

Description

Fingerprint identification method and mobile terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a fingerprint identification method and a mobile terminal.

Background

With the increasing size of the display screen of the mobile terminal and the increasing of various high power consumption application scenes, it becomes more and more important to reduce the power consumption of the mobile terminal and to improve the endurance time of the mobile terminal. At present, many mobile terminals have the fingerprint identification function, gather user's fingerprint information through the fingerprint identification module and discern to carry out the authentication to user's identity. The principle of the technology is that when a finger touches a screen, the display screen is highlighted, light rays are reflected by lines on the surface of the finger and then received by an optical fingerprint sensor under the screen, and the fingerprint is recognized after processing.

Since the above-mentioned photoelectric fingerprint recognition technology needs to rely on Light reflection to recognize a fingerprint, the higher the brightness of a screen (e.g., an AMOLED (Active-Matrix Organic Light Emitting Diode) screen or a Micro LED (Micro Light Emitting Diode) screen) is, the more the recognition rate of the fingerprint is improved. However, when the brightness of the whole screen is high, the power consumption is correspondingly large, and the frequency of using the fingerprint identification function is generally high, so that the endurance time of the mobile terminal can be greatly reduced.

In the prior art, no effective solution is provided at present for the problem of high power consumption of fingerprint identification of a mobile terminal.

Disclosure of Invention

The embodiment of the invention provides a fingerprint identification method and a mobile terminal, and aims to solve the problem of high power consumption of fingerprint identification of the mobile terminal.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a fingerprint identification method, which is applied to a mobile terminal, where a screen of the mobile terminal includes a fingerprint identification module, and the method includes:

if the touch operation on the screen of the mobile terminal is detected, identifying the touch operation in a touch area of the screen of the mobile terminal;

if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value;

utilize fingerprint identification module collection and discernment the regional fingerprint information of touch-control.

In a second aspect, an embodiment of the present invention further provides a mobile terminal. The mobile terminal screen includes the fingerprint identification module, mobile terminal includes:

the first identification module is used for identifying the touch operation in the touch area of the screen of the mobile terminal if the touch operation on the screen of the mobile terminal is detected;

the control module is used for controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value if the mobile terminal is detected to be in a to-be-fingerprint authentication state, and the brightness value of a display area of a screen of the mobile terminal except the touch area is smaller than the first preset brightness value;

and the second identification module is used for acquiring and identifying the fingerprint information of the touch area by utilizing the fingerprint identification module.

In a third aspect, an embodiment of the present invention further provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the fingerprint identification method described above.

In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the fingerprint identification method described above.

In the embodiment of the invention, if the touch operation on the screen of the mobile terminal is detected, the touch operation is identified in the touch area of the screen of the mobile terminal; if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value; utilize fingerprint identification module collection and discernment the regional fingerprint information of touch-control. According to the embodiment of the invention, the fingerprint acquisition and identification are carried out by only controlling the brightness value of the touch area to be greater than or equal to the first preset brightness value, compared with the method for improving the brightness of the whole screen to improve the identification rate of the fingerprint, the power consumption of the mobile terminal is reduced and the endurance time of the mobile terminal is prolonged while the higher fingerprint identification rate is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a flow chart of a fingerprint identification method provided by an embodiment of the invention;

FIG. 2 is a flow chart of a fingerprint recognition method according to another embodiment of the present invention;

FIG. 3 is a diagram of a screen display of a mobile terminal according to an embodiment of the present invention;

FIG. 4 is a flowchart of a fingerprint recognition method according to another embodiment of the present invention;

fig. 5 is a block diagram of a mobile terminal according to an embodiment of the present invention;

fig. 6 is a block diagram of a mobile terminal according to still another embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a fingerprint identification method, which is applied to a mobile terminal, wherein a screen of the mobile terminal comprises a fingerprint identification module. Above-mentioned fingerprint identification module can be referred to and adopts the module that photoelectric fingerprint identification technique carried out fingerprint identification, can handle the chip including optical sensor and fingerprint, and is specific, and optical sensor can receive the optical signal through finger surface line reflection to send and handle the chip for the fingerprint and handle, with discernment fingerprint information.

Referring to fig. 1, fig. 1 is a flowchart of a fingerprint identification method according to an embodiment of the present invention, as shown in fig. 1, including the following steps:

step 101, if a touch operation on a mobile terminal screen is detected, identifying a touch area of the touch operation on the mobile terminal screen.

In the embodiment of the present invention, the screen of the mobile terminal may be an AMOLED (Active-Matrix Organic Light emitting Diode) screen or a Micro LED (Micro Light emitting Diode) screen. Specifically, after the touch operation of the user finger on the mobile terminal screen is detected, a contact point of the user finger and the mobile terminal screen can be detected, and the touch area of the user finger on the mobile terminal screen can be determined according to the contact point of the user finger and the mobile terminal screen.

Step 102, if it is detected that the mobile terminal is in a state of waiting for fingerprint authentication, controlling a brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling a brightness value of a display area of a screen of the mobile terminal except the touch area to be less than the first preset brightness value.

In the embodiment of the present invention, the condition that the mobile terminal is in the to-be-fingerprint-authenticated state may include that the mobile terminal is in the to-be-unlocked state (for example, the mobile terminal is in the screen-off state or in the screen-locking state), the mobile terminal is in the to-be-paid state, and the like. The first preset brightness value may be reasonably set according to an actual situation, for example, the first preset brightness value may be a maximum brightness value of a screen of the mobile terminal, or 90% of the maximum brightness value of the screen of the mobile terminal, so as to ensure that the touch area is in a highlight display state.

Specifically, when the mobile terminal is detected to be in a to-be-fingerprint authentication state, it is indicated that the touch operation of the current user finger on the mobile terminal screen is likely to be to input fingerprint information, and at this time, the brightness value of the touch area can be controlled to be greater than or equal to a first preset brightness value to ensure that the touch area is in a highlight display state, so that a fingerprint is acquired and identified through the touch area, and the fingerprint identification rate can be improved; in addition, the brightness value of the display area of the mobile terminal screen except the touch area is controlled to be smaller than a first preset brightness value, so that the power consumption of the mobile terminal can be reduced.

Step 103, collecting and identifying the fingerprint information of the touch area by using a fingerprint identification module.

In the embodiment of the invention, the fingerprint identification module can scan the whole mobile terminal screen to collect and identify the fingerprint information of the finger of the user, and can also scan the touch area only to collect and identify the fingerprint information of the finger of the user.

Specifically, when the fingerprint information of the user finger needs to be collected is detected, the embodiment of the invention only controls the highlight display of the user finger in the touch area of the screen of the mobile terminal, so that the fingerprint identification module can collect the fingerprint information of the user finger more accurately, the power consumption of the mobile terminal can be reduced, and the endurance time of the mobile terminal is prolonged.

In the embodiment of the present invention, the mobile terminal may be a mobile phone, a Tablet personal Computer (Tablet personal Computer), a Laptop Computer (Laptop Computer), a personal digital assistant (PDA for short), a Wearable Device (Wearable Device), or the like.

According to the fingerprint identification method, if the touch operation on the screen of the mobile terminal is detected, the touch operation is identified in the touch area of the screen of the mobile terminal; if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value; utilize fingerprint identification module collection and discernment the regional fingerprint information of touch-control. According to the embodiment of the invention, the fingerprint acquisition and identification are carried out by only controlling the brightness value of the touch area to be greater than or equal to the first preset brightness value, compared with the method for improving the brightness of the whole screen to improve the identification rate of the fingerprint, the power consumption of the mobile terminal is reduced and the endurance time of the mobile terminal is prolonged while the higher fingerprint identification rate is ensured.

Referring to fig. 2, fig. 2 is a flowchart of a fingerprint identification method according to an embodiment of the present invention. The difference between the embodiment of the present invention and the previous embodiment is mainly that the step 102 is further defined to further improve the accuracy of fingerprint identification. In an embodiment of the present invention, if it is detected that the mobile terminal is in a state of waiting for fingerprint authentication, controlling a brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling a brightness value of a display area of a screen of the mobile terminal, excluding the touch area, to be less than the first preset brightness value includes: if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, controlling the touch area to display a preset color, and controlling the brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.

As shown in fig. 2, the fingerprint identification method provided in the embodiment of the present invention includes the following steps:

step 201, if a touch operation on a mobile terminal screen is detected, identifying a touch area of the touch operation on the mobile terminal screen.

This step may be the same as step 101, and is not described herein again to avoid repetition.

Step 202, if it is detected that the mobile terminal is in a to-be-fingerprint-authenticated state, controlling a brightness value of the touch area to be greater than or equal to a first preset brightness value, the touch area displaying a preset color, and a brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.

In the embodiment of the present invention, the preset color may be white or a color closer to white. In practical application, when the screen displays white or a color closer to white, the fingerprint identification rate is improved. Therefore, in the embodiment of the present invention, when it is detected that the mobile terminal is in a state of waiting for fingerprint authentication, the brightness value of the touch area is controlled to be greater than or equal to a first preset brightness value and the touch area displays a preset color, so as to further improve the fingerprint identification rate.

Optionally, in order to further reduce the power consumption of the mobile terminal, step 202 may include:

if the mobile terminal is detected to be in the screen-off state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value and the touch area to display a preset color, and keeping the display area of the screen of the mobile terminal except the touch area in a closed state.

In the embodiment of the invention, when the mobile terminal is detected to be in the screen-off state, it is indicated that the current touch control of the mobile terminal screen by a user is likely to be a fingerprint unlocking screen, at this time, the brightness value of the touch control area can be controlled to be greater than or equal to a first preset brightness value, and the touch control area displays a preset color, so as to improve the recognition rate of the fingerprint, and the power consumption of the mobile terminal can be effectively reduced by keeping the display area of the mobile terminal screen except the touch control area in the closed state.

It can be understood that when it is detected that the mobile terminal is in the screen-off state, the display area of the screen of the mobile terminal except the touch area may also be controlled to display black.

Optionally, in order to further reduce the power consumption of the mobile terminal, step 202 may further include:

if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value and the touch area to display a preset color, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or

If the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value and the touch area to display a preset color, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be smaller than or equal to a second preset brightness value, wherein the second preset brightness value is smaller than the first preset brightness value.

In the embodiment of the present invention, when it is detected that the mobile terminal is in a screen lock state, it indicates that a user may touch the mobile terminal screen to unlock the screen by using a fingerprint, at this time, the brightness value of the touch area may be controlled to be greater than or equal to a first preset brightness value and the touch area displays a preset color, so as to improve the recognition rate of the fingerprint, and when the brightness value of the display area of the mobile terminal screen other than the touch area is smaller than the first preset brightness value, the brightness value of the display area of the mobile terminal screen other than the touch area may be maintained.

When the brightness value of the display area of the mobile terminal screen other than the touch area is not less than the first preset brightness value, the brightness value of the display area of the mobile terminal screen other than the touch area may be reduced to a second preset brightness value, or may be lower than the second preset brightness value, for example, if the mobile terminal screen is in a maximum brightness value when the mobile terminal is in a screen lock state, the brightness value of the touch area may be controlled to be maintained at the maximum brightness value, and the brightness value of the display area of the mobile terminal screen other than the touch area may be reduced to be lower than the second preset brightness value (for example, 50% of the maximum brightness value of the screen), so as to reduce the power consumption of the mobile terminal.

Optionally, in the embodiment of the present invention, the brightness value of the touch area may be directly controlled to be greater than or equal to a first preset brightness value, the touch area displays a preset color, and the brightness value of a display area of the screen of the mobile terminal, excluding the touch area, is controlled to be less than or equal to a second preset brightness value.

Step 203, collecting and identifying the fingerprint information of the touch area by using a fingerprint identification module.

This step may be the same as step 103, and is not described herein again to avoid repetition.

According to the fingerprint identification method provided by the embodiment of the invention, when the mobile terminal is detected to be in the state of waiting for fingerprint authentication, the brightness value of the touch area is controlled to be greater than or equal to the first preset brightness value, the touch area displays the preset color, and the brightness value of the display area of the mobile terminal screen except the touch area is controlled to be smaller than the first preset brightness value, so that the power consumption can be reduced, the endurance time of the mobile terminal can be prolonged, and the fingerprint identification rate can be further improved.

Optionally, in order to further reduce power consumption of the mobile terminal, the fingerprint authentication waiting state includes a screen-off state, and if it is detected that the mobile terminal is in the fingerprint authentication waiting state, the controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and the brightness value of the display area of the screen of the mobile terminal except the touch area to be less than the first preset brightness value includes:

and if the mobile terminal is detected to be in a screen-off state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and keeping a display area of the screen of the mobile terminal except the touch area in a closed state.

In the embodiment of the invention, when the mobile terminal is detected to be in the screen-off state, it is indicated that the current touch control of the mobile terminal screen by the user is likely to be a fingerprint unlocking screen, at this time, the brightness value of the touch control area can be controlled to be greater than or equal to a first preset brightness value so as to improve the recognition rate of the fingerprint, and the power consumption of the mobile terminal can be effectively reduced by keeping the display area of the mobile terminal screen except the touch control area in the closed state. For example, referring to fig. 3, only the user's finger touch area in the screen of the mobile terminal is in a highlighted state and displayed in white, and the other areas are in an off state.

It can be understood that when it is detected that the mobile terminal is in the screen-off state, the display area of the screen of the mobile terminal except the touch area may also be controlled to display black.

Optionally, in order to further reduce the power consumption of the mobile terminal, the fingerprint authentication waiting state includes a screen lock state, and if it is detected that the mobile terminal is in the fingerprint authentication waiting state, the controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and the brightness value of the display area of the mobile terminal screen except the touch area to be less than the first preset brightness value includes:

if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or

And if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be less than or equal to a second preset brightness value, wherein the second preset brightness value is less than the first preset brightness value.

In the embodiment of the present invention, when it is detected that the mobile terminal is in the screen lock state, it indicates that the current touch control of the mobile terminal screen by the user is likely to be a fingerprint unlocking screen, at this time, the brightness value of the touch control area may be controlled to be greater than or equal to a first preset brightness value, so as to improve the recognition rate of the fingerprint, and when the brightness value of the display area of the mobile terminal screen other than the touch control area is smaller than the first preset brightness value, the brightness value of the display area of the mobile terminal screen other than the touch control area may be maintained.

When the brightness value of the display area of the mobile terminal screen other than the touch area is not less than the first preset brightness value, the brightness value of the display area of the mobile terminal screen other than the touch area may be reduced to a second preset brightness value, or may be lower than the second preset brightness value, for example, if the mobile terminal screen is in a maximum brightness value when the mobile terminal is in a screen lock state, the brightness value of the touch area may be controlled to be maintained at the maximum brightness value, and the brightness value of the display area of the mobile terminal screen other than the touch area may be reduced to be lower than the second preset brightness value (for example, 20% of the maximum brightness value of the screen), so as to reduce the power consumption of the mobile terminal.

Optionally, in the embodiment of the present invention, the brightness value of the touch area may be directly controlled to be greater than or equal to a first preset brightness value, the touch area displays a preset color, and the brightness value of a display area of the screen of the mobile terminal, excluding the touch area, is controlled to be less than or equal to a second preset brightness value.

It should be noted that the second preset brightness value may be reasonably set according to actual requirements, for example, the second preset brightness value may be 20% of the maximum brightness value of the screen.

Optionally, in the embodiment of the present invention, when the brightness value of the display area of the mobile terminal screen other than the touch area is maintained or the brightness value of the display area of the mobile terminal screen other than the touch area is controlled to be less than or equal to a second preset brightness value, a transparent layer may be superimposed on the display interface of the mobile terminal screen, so as to reduce the gray scale of the display interface of the mobile terminal screen.

Optionally, for further reducing mobile terminal power consumption, the fingerprint identification module includes two at least fingerprint sensors, utilize the fingerprint identification module is gathered and is discerned the regional fingerprint information of touch-control includes:

starting a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

collecting fingerprint information of the touch area by using a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

and identifying fingerprint information of the touch area.

In an embodiment of the present invention, the fingerprint sensor may be an optical sensor. Specifically, the screen of the mobile terminal can be divided into at least two fingerprint scanning areas in advance, and each fingerprint scanning area can be correspondingly provided with at least one fingerprint sensor, so that the fingerprint scanning area corresponding to the touch area can be determined according to the position of the touch area, and only the fingerprint sensor in the fingerprint scanning area corresponding to the touch area can be started to perform fingerprint scanning so as to collect the fingerprint information of the touch area, so that the power consumption of the mobile terminal can be reduced, and the fingerprint scanning efficiency can be improved. It can be understood that there may be one or at least two fingerprint scanning areas corresponding to the touch area.

It is to be understood that the various embodiments described above may be combined as desired.

The following describes embodiments of the present invention with reference to examples:

in an embodiment of the present invention, the mobile terminal screen may include a touch module, a display module, and a fingerprint identification module, the touch module may include a touch screen and a controller thereof, and the fingerprint identification module may include an optical sensor and a fingerprint processing chip. Referring to fig. 4, the fingerprint identification method according to the embodiment of the present invention includes the following steps:

step 401, a touch operation is detected.

In the step, the touch operation of the user finger on the screen of the mobile terminal can be detected through the touch module.

Step 402, identifying a contact area.

In this step, a contact area of the user's finger on the screen of the mobile terminal, that is, the touch area, may be identified through the touch module, and sent to the control module, where the control module may include a processor.

And step 403, judging whether the mobile terminal is in an unlocked state.

In this step, whether the mobile terminal is in the unlocked state may be determined by the control module, and when it is determined that the mobile terminal is not in the unlocked state, step 404 may be performed, and when it is determined that the mobile terminal is in the unlocked state, step 408 may be performed.

And step 404, generating corresponding display content for display, and starting an optical fingerprint identification function.

In the step, corresponding display content can be generated through the control module and sent to the display module to be displayed.

Specifically, when the mobile terminal is in the screen-off state, the touch area may be controlled to be in a highlighted state (that is, the brightness value of the touch area is greater than a first preset brightness value) and to display white, and the display area of the screen of the mobile terminal except the touch area is in a closed state, see fig. 3. Optionally, the display area of the screen of the mobile terminal except the touch area may also be controlled to display black.

When the mobile terminal is in the screen locking state, the touch area can be controlled to be in a high brightness state (that is, the brightness value of the touch area is greater than a first preset brightness value) and to display white, so that the brightness value and the gray scale of the display area of the mobile terminal screen except the touch area are reduced or maintained.

Step 405, receiving the reflected optical signal and performing fingerprint identification processing.

In this step, can receive the light signal of reflection and carry out fingerprint identification through the fingerprint identification module and handle.

Step 406, determining whether the fingerprint identification is successful.

Specifically, if the acquired fingerprint information matches the preset fingerprint information, it may be determined that the fingerprint identification is successful, and step 407 is executed, and if the acquired fingerprint information does not match the preset fingerprint information, it may be determined that the fingerprint identification is failed, the process may be ended, or the step 401 may be executed again.

And 407, unlocking the screen of the mobile terminal, and recovering the system brightness.

In the step, the screen of the mobile terminal can be unlocked through the control module, and the system brightness can be recovered.

And step 408, executing corresponding operation according to the position of the touch operation.

According to the embodiment of the invention, through the fingerprint identification method, the touch area of the finger of the user on the screen of the mobile terminal can be identified, and only the touch area is controlled to be highlighted, so that the power consumption of the screen of the mobile terminal can be reduced, and the service life of the mobile terminal is prolonged. Secondly, because only the brightness of the touch area is improved, a driving chip with stronger driving capability is not needed to drive the screen to display, and the cost can be saved. Finally, because only the touch area is controlled to be highlighted, when the ambient light is dark, particularly at night, the strong stimulation of the screen brightness to the eyes of the user can be reduced.

Referring to fig. 5, fig. 5 is a block diagram of a mobile terminal according to an embodiment of the present invention. This mobile terminal screen includes fingerprint identification module. As shown in fig. 5, the mobile terminal 500 includes: a first identification module 501, a control module 502, and a second identification module 503, wherein:

a first identifying module 501, configured to identify, if a touch operation on the mobile terminal screen is detected, that the touch operation is in a touch area of the mobile terminal screen;

a control module 502, configured to control a brightness value of the touch area to be greater than or equal to a first preset brightness value if it is detected that the mobile terminal is in a to-be-fingerprint-authenticated state, and a brightness value of a display area of a screen of the mobile terminal, excluding the touch area, is less than the first preset brightness value;

the second identification module 503 is configured to collect and identify fingerprint information of the touch area by using the fingerprint identification module.

Optionally, the control module 502 is specifically configured to:

if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, controlling the touch area to display a preset color, and controlling the brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.

Optionally, the to-be-fingerprint authentication state includes a screen-off state, and the control module 502 is specifically configured to:

and if the mobile terminal is detected to be in a screen-off state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and keeping a display area of the screen of the mobile terminal except the touch area in a closed state.

Optionally, the to-be-fingerprint authentication state includes a screen lock state, and the control module 502 is specifically configured to:

if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or

And if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be less than or equal to a second preset brightness value, wherein the second preset brightness value is less than the first preset brightness value.

Optionally, the fingerprint identification module includes at least two fingerprint sensors, referring to fig. 6, and the second identification module 503 includes:

a starting unit 5031, configured to start a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

a scanning unit 5032, configured to acquire fingerprint information of the touch area by using a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

an identifying unit 5033, configured to identify fingerprint information of the touch area.

The mobile terminal 500 provided in the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 1, fig. 2, and fig. 4, and for avoiding repetition, details are not described here again.

In the mobile terminal 500 of the embodiment of the present invention, the first identification module 501 is configured to identify a touch area of a screen of the mobile terminal where a touch operation is detected if the touch operation on the screen of the mobile terminal is detected; a control module 502, configured to control a brightness value of the touch area to be greater than or equal to a first preset brightness value if it is detected that the mobile terminal is in a to-be-fingerprint-authenticated state, and a brightness value of a display area of a screen of the mobile terminal, excluding the touch area, is less than the first preset brightness value; the second identification module 503 is configured to collect and identify fingerprint information of the touch area by using the fingerprint identification module. According to the embodiment of the invention, the fingerprint acquisition and identification are carried out by only controlling the brightness value of the touch area to be greater than or equal to the first preset brightness value, compared with the method for improving the brightness of the whole screen to improve the identification rate of the fingerprint, the power consumption of the mobile terminal is reduced and the endurance time of the mobile terminal is prolonged while the higher fingerprint identification rate is ensured.

Fig. 7 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention. Referring to fig. 7, the mobile terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 7 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 710 is configured to, if a touch operation on the mobile terminal screen is detected, identify a touch area of the touch operation on the mobile terminal screen; if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value; utilize fingerprint identification module collection and discernment the regional fingerprint information of touch-control.

According to the embodiment of the invention, the fingerprint acquisition and identification are carried out by only controlling the brightness value of the touch area to be greater than or equal to the first preset brightness value, compared with the method for improving the brightness of the whole screen to improve the identification rate of the fingerprint, the power consumption of the mobile terminal is reduced and the endurance time of the mobile terminal is prolonged while the higher fingerprint identification rate is ensured.

Optionally, the processor 710 is further configured to:

if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, controlling the touch area to display a preset color, and controlling the brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.

Optionally, the to-be-fingerprinted authentication state includes a screen-off state, and the processor 710 is further configured to:

and if the mobile terminal is detected to be in a screen-off state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and keeping a display area of the screen of the mobile terminal except the touch area in a closed state.

Optionally, the to-be-fingerprinted authentication state includes a screen lock state, and the processor 710 is further configured to:

if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or

And if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be less than or equal to a second preset brightness value, wherein the second preset brightness value is less than the first preset brightness value.

Optionally, the fingerprint identification module includes at least two fingerprint sensors, and the processor 710 is further configured to:

starting a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

collecting fingerprint information of the touch area by using a fingerprint sensor in a fingerprint scanning area corresponding to the touch area;

and identifying fingerprint information of the touch area.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.

The mobile terminal provides the user with wireless broadband internet access via the network module 702, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the mobile terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.

The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.

The mobile terminal 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the mobile terminal 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 708 is an interface through which an external device is connected to the mobile terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 700 or may be used to transmit data between the mobile terminal 700 and external devices.

The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 710 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby integrally monitoring the mobile terminal. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.

The mobile terminal 700 may also include a power supply 711 (e.g., a battery) for powering the various components, and the power supply 711 may be logically coupled to the processor 710 via a power management system that may enable managing charging, discharging, and power consumption by the power management system.

In addition, the mobile terminal 700 includes some functional modules that are not shown, and thus will not be described in detail herein.

Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program is executed by the processor 710 to implement each process of the foregoing fingerprint identification method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the fingerprint identification method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (12)

1. The fingerprint identification method is applied to a mobile terminal, and is characterized in that a mobile terminal screen comprises a fingerprint identification module, and the method comprises the following steps: if the touch operation on the screen of the mobile terminal is detected, identifying the touch operation in a touch area of the screen of the mobile terminal; if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and controlling the brightness value of a display area of a screen of the mobile terminal except the touch area to be smaller than the first preset brightness value; collecting and identifying fingerprint information of the touch area by using the fingerprint identification module; the fingerprint identification module is a module for performing fingerprint identification by adopting a photoelectric fingerprint identification technology, and the control module controls the brightness value of the touch area to be greater than or equal to a first preset brightness value so as to collect and identify fingerprints through the touch area.
2. The method according to claim 1, wherein if it is detected that the mobile terminal is in a state of waiting for fingerprint authentication, controlling a brightness value of the touch area to be greater than or equal to a first preset brightness value, and a brightness value of a display area of the screen of the mobile terminal except the touch area to be less than the first preset brightness value comprises: if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, controlling the touch area to display a preset color, and controlling the brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.
3. The method according to claim 1, wherein the fingerprint authentication waiting state comprises a screen-off state, and the controlling, if it is detected that the mobile terminal is in the fingerprint authentication waiting state, a brightness value of the touch area to be greater than or equal to a first preset brightness value, and a brightness value of a display area of the screen of the mobile terminal except the touch area to be less than the first preset brightness value comprises: and if the mobile terminal is detected to be in a screen-off state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and keeping a display area of the screen of the mobile terminal except the touch area in a closed state.
4. The method according to claim 1, wherein the to-be-fingerprint-authenticated state includes a screen-lock state, and the controlling, if it is detected that the mobile terminal is in the to-be-fingerprint-authenticated state, a brightness value of the touch area to be greater than or equal to a first preset brightness value, and a brightness value of a display area of the screen of the mobile terminal except the touch area to be less than the first preset brightness value comprises: if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or
And if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be less than or equal to a second preset brightness value, wherein the second preset brightness value is less than the first preset brightness value.
5. The method according to any one of claims 1 to 4, wherein the fingerprint identification module comprises at least two fingerprint sensors, and the collecting and identifying the fingerprint information of the touch area by using the fingerprint identification module comprises: starting a fingerprint sensor in a fingerprint scanning area corresponding to the touch area; collecting fingerprint information of the touch area by using a fingerprint sensor in a fingerprint scanning area corresponding to the touch area; and identifying fingerprint information of the touch area.
6. The utility model provides a mobile terminal, its characterized in that, the mobile terminal screen includes the fingerprint identification module, mobile terminal includes: the first identification module is used for identifying the touch operation in the touch area of the screen of the mobile terminal if the touch operation on the screen of the mobile terminal is detected;
the control module is used for controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value if the mobile terminal is detected to be in a to-be-fingerprint authentication state, and the brightness value of a display area of a screen of the mobile terminal except the touch area is smaller than the first preset brightness value;
the second identification module is used for collecting and identifying the fingerprint information of the touch area by utilizing the fingerprint identification module;
the fingerprint identification module is a module for performing fingerprint identification by adopting a photoelectric fingerprint identification technology, and the control module controls the brightness value of the touch area to be greater than or equal to a first preset brightness value so as to collect and identify fingerprints through the touch area.
7. The mobile terminal of claim 6, wherein the control module is specifically configured to: if the mobile terminal is detected to be in a to-be-fingerprint authentication state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, controlling the touch area to display a preset color, and controlling the brightness value of a display area of the screen of the mobile terminal except the touch area to be smaller than the first preset brightness value.
8. The mobile terminal according to claim 6, wherein the to-be-fingerprinted authentication state includes a screen-off state, and the control module is specifically configured to: and if the mobile terminal is detected to be in a screen-off state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and keeping a display area of the screen of the mobile terminal except the touch area in a closed state.
9. The mobile terminal according to claim 6, wherein the to-be-fingerprinted authentication state includes a screen-locking state, and the control module is specifically configured to: if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be larger than or equal to a first preset brightness value, and keeping the brightness value of the display area of the mobile terminal screen except the touch area when the brightness value of the display area of the mobile terminal screen except the touch area is smaller than the first preset brightness value; or
And if the mobile terminal is detected to be in a screen locking state, controlling the brightness value of the touch area to be greater than or equal to a first preset brightness value, and controlling the brightness value of a display area of the mobile terminal screen except the touch area to be less than or equal to a second preset brightness value, wherein the second preset brightness value is less than the first preset brightness value.
10. The mobile terminal according to any of claims 6 to 9, wherein the fingerprint identification module comprises at least two fingerprint sensors, and the second identification module comprises: the starting unit is used for starting a fingerprint sensor in a fingerprint scanning area corresponding to the touch area; the scanning unit is used for acquiring fingerprint information of the touch area by using a fingerprint sensor in a fingerprint scanning area corresponding to the touch area; and the identification unit is used for identifying the fingerprint information of the touch area.
11. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the fingerprint recognition method according to any one of claims 1 to 5.
12. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the fingerprint recognition method according to any one of claims 1 to 5.
CN201810326657.5A 2018-04-12 2018-04-12 Fingerprint identification method and mobile terminal CN108427876B (en)

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